For most backup operations, the mysqlbackup
command connects to the MySQL server using the credentials
supplied with the --user
and
--password
options. The specified
user
needs certain privileges. You
can either create a new user with a minimal set of privileges,
or use an administrative account such as root.
The minimum privileges for the MySQL user with which mysqlbackup connects to the server are:
RELOAD
on all databases and tables.CREATE
,INSERT
,DROP
, andUPDATE
on the tablesmysql.backup_progress
andmysql.backup_history
, and alsoSELECT
onmysql.backup_history
.SUPER
, to enable and disable logging, and to optimize locking in order to minimize disruption to database processing.REPLICATION CLIENT
, to retrieve the binary log position, which is stored with the backup.PROCESS
, to process DDL statements with theALGORITHM = INPLACE
clause.
To create a MySQL user (mysqlbackup
in this
example) and set the above-mentioned privileges for the user to
connect from localhost, issue statements like the following from
the mysql
client program:
CREATE USER 'mysqlbackup'@'localhost' IDENTIFIED BY 'password';
GRANT RELOAD ON *.* TO 'mysqlbackup'@'localhost';
GRANT CREATE, INSERT, DROP, UPDATE ON mysql.backup_progress TO 'mysqlbackup'@'localhost';
GRANT CREATE, INSERT, SELECT, DROP, UPDATE ON mysql.backup_history TO 'mysqlbackup'@'localhost';
GRANT REPLICATION CLIENT ON *.* TO 'mysqlbackup'@'localhost';
GRANT SUPER ON *.* TO 'mysqlbackup'@'localhost';
GRANT PROCESS ON *.* TO 'mysqlbackup'@'localhost';
The following additional privileges are required for using specific features of MySQL Enterprise Backup:
For using transportable tablespaces (TTS) to back up and restore InnoDB tables:
LOCK TABLES
andSELECT
for backing up tables.CREATE
for restoring tables.DROP
for dropping tables if the restore fails for some reasons.FILE
for restoring tables in external tablespaces outside of the server's data directory.
For creating tape backups using the System Backup to Tape (SBT) API :
CREATE
,INSERT
,DROP
, andUPDATE
on themysql.backup_sbt_history
table
Set those additional privileges if you are using the features
that require them. To set all of them, issue a statement like
the following from the mysql
client program:
GRANT LOCK TABLES, SELECT, CREATE, DROP, FILE ON *.* TO 'mysqlbackup'@'localhost';
GRANT CREATE, INSERT, DROP, UPDATE ON mysql.backup_sbt_history TO 'mysqlbackup'@'localhost';